Home / 11,113.70-16,683.59-8,775.28

Finding the Fourth Proportional to 11,113.70, 16,683.59 and 8,775.28

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Solution

The fourth proportional to 11,113.70, 16,683.59 and 8,775.28 is: 13,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.70 : 16,683.59 = 8,775.28 : x
  2. Step 2: Convert to fraction form
    11,113.70/16,683.59 = 8,775.28/x
  3. Step 3: Cross multiply
    11,113.70x = 16,683.59 × 8,775.28
  4. Step 4: Simplify right side
    11,113.70x = 146,403,088.07
  5. Step 5: Solve for x
    x = 146,403,088.07/11,113.70
  6. Step 6: Final answer
    x = 13,173.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.